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Biosensors 2016, 6(3), 35; doi:10.3390/bios6030035

MIPs and Aptamers for Recognition of Proteins in Biomimetic Sensing

1
Fraunhofer Institute for Cell Therapy and Immunology, Branch Bioanalytics and Bioprocesses (IZI-BB), Am Mühlenberg 13, Potsdam D-14476, Germany
2
Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Strasse 25-26, Potsdam D-14476, Germany
3
Turkish-German University, Faculty of Science, Molecular Biotechnology, Sahinkaya Cad. No. 86, Bekoz, Istanbul 34820, Turkey
4
MTA-BME “Lendület” Chemical Nanosensors Research Group, Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellért tér 4, Budapest H-1111, Hungary
5
Department of Materials Science and Nanotechnology Engineering, KTO Karatay University, Konya 42020, Turkey
*
Authors to whom correspondence should be addressed.
Academic Editor: Giovanna Marrazza
Received: 9 May 2016 / Revised: 4 July 2016 / Accepted: 11 July 2016 / Published: 18 July 2016
(This article belongs to the Special Issue Aptamer Sensors)
View Full-Text   |   Download PDF [2385 KB, uploaded 18 July 2016]   |  

Abstract

Biomimetic binders and catalysts have been generated in order to substitute the biological pendants in separation techniques and bioanalysis. The two major approaches use either “evolution in the test tube” of nucleotides for the preparation of aptamers or total chemical synthesis for molecularly imprinted polymers (MIPs). The reproducible production of aptamers is a clear advantage, whilst the preparation of MIPs typically leads to a population of polymers with different binding sites. The realization of binding sites in the total bulk of the MIPs results in a higher binding capacity, however, on the expense of the accessibility and exchange rate. Furthermore, the readout of the bound analyte is easier for aptamers since the integration of signal generating labels is well established. On the other hand, the overall negative charge of the nucleotides makes aptamers prone to non-specific adsorption of positively charged constituents of the sample and the “biological” degradation of non-modified aptamers and ionic strength-dependent changes of conformation may be challenging in some application. View Full-Text
Keywords: biomimetic recognition elements; aptamers; molecularly imprinted polymers; chemical sensors; aptasensors; in vitro selection; SELEX biomimetic recognition elements; aptamers; molecularly imprinted polymers; chemical sensors; aptasensors; in vitro selection; SELEX
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Menger, M.; Yarman, A.; Erdőssy, J.; Yildiz, H.B.; Gyurcsányi, R.E.; Scheller, F.W. MIPs and Aptamers for Recognition of Proteins in Biomimetic Sensing. Biosensors 2016, 6, 35.

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